Nws yog 8.8 "Dab Rig nrog cov xim ntshiab. Ua-nyob rau hauv lim cov khoom lim system. Soot thiab residue los ntawm combustion raug ntxuav tawm thaum lawv dhau los ntawm cov dej chamber. Cov roj lim yuav smoother thiab txias dua, muab koj qhov kev haus luam yeeb zoo tshaj plaws. Cov khoom lim ua kom cov pa taws ntws mus rau hauv dej, tag nrho cov bongs tuaj nrog cov khoom siv sib xws.